Sciweavers

ICASSP
2011
IEEE
12 years 11 months ago
Region-based image fusion using a combinatory Chebyshev-ICA method
The aim of this paper is to provide an algorithm for image fusion which combines the techniques of Chebyshev polynomial (CP) approximation and independent component analysis (ICA)...
Zaid Omar, Nikolaos Mitianoudis, Tania Stathaki
ICASSP
2011
IEEE
12 years 11 months ago
Message-passing for base-calling in sequencing-by-synthesis systems
Performance of DNA sequencing-by-synthesis systems is fundamentally limited by the stochastic nature of the underlying biochemical process. We develop a novel graphical representa...
Sang Hyun Lee, Manohar Shamaiah, Haris Vikalo
ICASSP
2011
IEEE
12 years 11 months ago
A constrained optimization approach for multi-zone surround sound
A recent approach to surround sound is to perform exact control of the sound field over a region of space. Here, the driving signals for an array of loudspeakers are chosen to cr...
Terence Betlehem, Paul D. Teal
ICASSP
2011
IEEE
12 years 11 months ago
Applications of short space-time fourier analysis in digital acoustics
This paper presents a signal processing tool for analyzing and manipulating digitized acoustic wave fields, based on a spatio-temporal extension of the time–frequency represent...
Francisco Pinto, Martin Vetterli
ICASSP
2011
IEEE
12 years 11 months ago
Know Thy Neighbor: Combining audio features and social tags for effective music similarity
Measuring similarity of two musical pieces is an ill-defined problem for which recent research on contextual information, assigned as free-form text (tags) in social networking s...
Alexandros Nanopoulos, Ioannis Karydis
ICASSP
2011
IEEE
12 years 11 months ago
Bio-inspired cooperative optimization with application to bacteria motility
Inspired by bacterial motility, we propose an algorithm for adaptation over networks with mobile nodes. The nodes have limited abilities and they are allowed to cooperate with the...
Jianshu Chen, Ali H. Sayed
ICASSP
2011
IEEE
12 years 11 months ago
Quantizer design with mismatched side information at the decoder
Quantizer design for lossy compression with mismatched side information (SI) at the decoder is investigated. The statistical dependency between the source and SI is assumed to be ...
Sepideh Shamaei, Mehrdad Valipour
ICASSP
2011
IEEE
12 years 11 months ago
Decision tree-based context clustering based on cross validation and hierarchical priors
The standard, ad-hoc stopping criteria used in decision tree-based context clustering are known to be sub-optimal and require parameters to be tuned. This paper proposes a new app...
Heiga Zen, Mark J. F. Gales
ICASSP
2011
IEEE
12 years 11 months ago
A clustering based framework for dictionary block structure identification
Sparse representations over redundant dictionaries offer an efficient paradigm for signal representation. Recently block-sparsity has been put forward as a prior condition for so...
Ender M. Eksioglu
ICASSP
2011
IEEE
12 years 11 months ago
On autocorrelation-based multiantenna spectrum sensing for cognitive radios in unknown noise
Recently several time-domain approaches relying on the generalized likelihood ratio test (GLRT) paradigm have been proposed for multiple antenna spectrum sensing in cognitive radi...
Jitendra K. Tugnait